Home / 13,975.57-19,278.86-10,612.81

Finding the Fourth Proportional to 13,975.57, 19,278.86 and 10,612.81

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Solution

The fourth proportional to 13,975.57, 19,278.86 and 10,612.81 is: 14,640.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.57 : 19,278.86 = 10,612.81 : x
  2. Step 2: Convert to fraction form
    13,975.57/19,278.86 = 10,612.81/x
  3. Step 3: Cross multiply
    13,975.57x = 19,278.86 × 10,612.81
  4. Step 4: Simplify right side
    13,975.57x = 204,602,825.13
  5. Step 5: Solve for x
    x = 204,602,825.13/13,975.57
  6. Step 6: Final answer
    x = 14,640.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.